April 14, 1981: Landing of Columbia on STS-1

#OTD in 2007…NASA’s Dawn probe launched to explore the uncharted worlds of Vesta and Ceres in the heart of the asteroid belt.

Studying the atmosphere as part of NASA’s Mission to Planet Earth was the objective of shuttle Atlantis’ STS-45 mission in March 1992.

A mission to service the Hubble Space Telescope blasted off on this date in 2002.